Computational efficiency of interpolated band stop filters for odd spectral bands

An Example of Suppression of Spurious Stop-Bands of EBG Band-Stop Filter

Based on the well known theory of infinite periodic structures, analytical theory of EBG (electromagnetic band gap) cells suppressing 6 higher (spurious) stop-bands is developed. Using such cells in a cascade the straight-forward procedure for design of the corresponding EBG band-stop filter is proposed, with possibility to control the width and the depth of the stopband. The analytical theory ...

Receiver Band-Pass Filters Having Maximum Attenuation in Adjacent Bands

Hyperspectral bands prediction based on inter-band spectral correlation structure

Hyperspectral imaging has been widely studied in many applications; this type of sensors is imaging spectrometry sensors, which divide the waveband into hundreds of contiguous narrow bands for analysis. These images provide much richer and finer spectral information than traditional multispectral images do. Hyperspectral satellite images require enormous amounts of data space. NASA's satellite ...

An Improved Design Method For Stepped Line Microwave Filters with Broad Stop Bands

The design problem for filters attenuating signals with frequencies outside the useful (pass) bands can be in many cases reduced to the problem of designing low pass or band-stop filters with sufficiently large bandwidths. It follows from the fact that some elements of complex electronic systems, as for example the radiating elements of antenna arrays, have the characteristics similar to those ...

High-performance variable band-pass/band-stop state-space digital filters using Gramian-preserving frequency transformation